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    <title>学生</title>
    <link rel="stylesheet" href="./bootstrap/bootstrap.min.css" />
    <link rel="stylesheet" href="./bootstrap/bootstrap-icons.css" />
    <link rel="stylesheet" href="./css/common.css" />
    <link rel="stylesheet" href="./css/student.css" />
  </head>
  <body class="application application-offset">
    <div class="container-fluid container-application">
      <div class="sidenav show" id="sidenav-main">
        <!-- Sidenav header -->
        <div class="sidenav-header d-flex align-items-center">
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            <span class="logo">·ITCAST·</span>
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        <div
          class="sidenav-user d-flex flex-column align-items-center justify-content-between text-center"
        >
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          <div>
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                class=""
              />
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            <div class="mt-5">
              <h5 class="mb-0 text-white">黑马前端</h5>
              <span class="d-block text-sm text-white opacity-8 mb-3"
                >数据可视化</span
              >
              <a
                href="javascript:;"
                class="btn btn-sm btn-white btn-icon rounded-pill shadow hover-translate-y-n3"
              >
                <span class="btn-inner--text">学前端来黑马</span>
              </a>
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        </div>
        <!-- Application nav -->
        <div class="nav-application clearfix">
          <a href="./index.html" class="btn btn-square text-sm">
            <span class="btn-inner--icon d-block"
              ><i class="bi bi-house bi-2x"></i
            ></span>
            <span class="btn-inner--icon d-block pt-2">首页</span>
          </a>
          <a href="./student.html" class="btn btn-square text-sm active">
            <span class="btn-inner--icon d-block"
              ><i class="bi bi-people bi-2x"></i
            ></span>
            <span class="btn-inner--icon d-block pt-2">学生</span>
          </a>
          <a href="javascript:;" class="btn btn-square text-sm">
            <span class="btn-inner--icon d-block"
              ><i class="bi bi-columns bi-2x"></i
            ></span>
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            <span class="btn-inner--icon d-block"
              ><i class="bi bi-files bi-2x"></i
            ></span>
            <span class="btn-inner--icon d-block pt-2">资料</span>
          </a>
          <a href="javascript:;" class="btn btn-square text-sm">
            <span class="btn-inner--icon d-block"
              ><i class="bi bi-receipt bi-2x"></i
            ></span>
            <span class="btn-inner--icon d-block pt-2">就业</span>
          </a>
          <a href="javascript:;" class="btn btn-square text-sm">
            <span class="btn-inner--icon d-block"
              ><i class="bi bi-gear bi-2x"></i
            ></span>
            <span class="btn-inner--icon d-block pt-2">设置</span>
          </a>
        </div>
        <!-- Misc area -->
        <div class="card bg-gradient-warning">
          <div class="card-body">
            <h5 class="text-white">哈喽, 朋友!</h5>
            <p class="text-white mb-4">
              为什么不现在开始学习前端，创造一些令人惊叹的东西呢？
            </p>
            <a
              href="http://itcast.cn"
              class="btn btn-sm btn-block btn-white rounded-pill"
              target="_blank"
              >Get started</a
            >
          </div>
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      </div>
      <div class="main-content position-relative">
        <nav
          class="navbar navbar-main navbar-expand-lg navbar-dark navbar-border"
          id="navbar-main"
        >
          <div class="container-fluid">
            <!-- Navbar nav -->
            <div
              class="collapse navbar-collapse navbar-collapse-fade"
              id="navbar-main-collapse"
            >
              <ul class="navbar-nav align-items-lg-center">
                <!-- Home  -->
                <li class="nav-item">
                  <a class="nav-link pl-lg-0" href="./index.html"> 首页 </a>
                </li>
                <li class="nav-item">
                  <a class="nav-link pl-lg-0" href="./index.html"> 传智教育 </a>
                </li>
                <li class="nav-item">
                  <a class="nav-link pl-lg-0" href="./index.html">
                    黑马程序员
                  </a>
                </li>
                <li class="nav-item">
                  <a class="nav-link pl-lg-0" href="./index.html"> 文档 </a>
                </li>
              </ul>
              <!-- Right menu -->
              <ul
                class="navbar-nav ml-lg-auto align-items-center d-none d-lg-flex"
              >
                <li class="nav-item dropdown dropdown-animate">
                  <a
                    class="nav-link pr-lg-0"
                    href=".dropdown-menu"
                    role="button"
                    data-toggle="dropdown"
                    aria-haspopup="true"
                    aria-expanded="false"
                  >
                    <div class="media media-pill align-items-center">
                      <span class="avatar rounded-circle">
                        <img
                          alt="Image placeholder"
                          src="https://yanxuan-item.nosdn.127.net/8b27deb1670c53e67c42ca3e1ed6fd12.jpg"
                        />
                      </span>
                      <div class="ml-2 d-none d-lg-block">
                        <span class="mb-0 text-sm font-weight-bold">Admin</span>
                      </div>
                    </div>
                  </a>
                </li>
                <li class="nav-item">
                  <a class="nav-link pl-lg-0" id="logout" href="javascript:;">
                    退出
                  </a>
                </li>
              </ul>
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        </nav>
        <div class="page-content">
          <div class="page-title mb-3">
            <div class="row justify-content-between align-items-center">
              <div class="col-md-6 mb-3 mb-md-0">
                <h5 class="h3 font-weight-400 mb-0 text-white">Students</h5>
                <span class="text-sm text-white opacity-8"
                  >一共有 <b class="total">0</b> 位学员</span
                >
              </div>
              <div
                class="col-md-6 d-flex align-items-center justify-content-between justify-content-md-end"
              >
                <a
                  id="openModal"
                  href="javascript:;"
                  class="btn btn-sm btn-white btn-icon-only rounded-circle ml-4"
                >
                  <span class="btn-inner--icon"
                    ><i class="bi bi-plus bi-2x"></i
                  ></span>
                </a>
              </div>
            </div>
          </div>
          <div class="row">
            <div class="col">
              <div class="card card-fluid">
                <div class="table-responsive" style="min-height: 1000px">
                  <table class="table align-items-center">
                    <thead>
                      <tr>
                        <th>姓名</th>
                        <th>年龄</th>
                        <th>性别</th>
                        <th>组号</th>
                        <th>期望薪资</th>
                        <th>就业薪资</th>
                        <th>籍贯</th>
                        <th>操作</th>
                      </tr>
                    </thead>
                    <tbody class="list">
                      <!-- <tr>
                      <td>张杰</td>
                      <td>20</td>
                      <td>男</td>
                      <td>第2组</td>
                      <td>10000</td>
                      <td>13000</td>
                      <td>北京北京市东城区</td>
                      <td>
                        <a href="javascript:;" class="text-success mr-3"><i class="bi bi-pen"></i></a>
                        <a href="javascript:;" class="text-danger"><i class="bi bi-trash"></i></a>
                      </td>
                    </tr> -->
                    </tbody>
                  </table>
                </div>
              </div>
            </div>
          </div>
          <!-- footer -->
          <div class="footer pt-5 pb-4 footer-light" id="footer-main">
            <div class="row text-center text-sm-left align-items-sm-center">
              <div class="col-sm-6">
                <p class="text-sm mb-0">
                  © 2022
                  <a href="https://itcast.cn" class="h6 text-sm" target="_blank"
                    >前端学科</a
                  >. All rights reserved.
                </p>
              </div>
              <div class="col-sm-6 mb-md-0">
                <ul class="nav justify-content-center justify-content-md-end">
                  <li class="nav-item">
                    <a class="nav-link" href="#">Support</a>
                  </li>
                  <li class="nav-item">
                    <a class="nav-link" href="#">Terms</a>
                  </li>
                  <li class="nav-item">
                    <a class="nav-link pr-0" href="#">Privacy</a>
                  </li>
                </ul>
              </div>
            </div>
          </div>
        </div>
      </div>
    </div>
    <!-- add Modal -->
    <div class="modal fade" id="modal">
      <div class="modal-dialog modal-lg">
        <div class="modal-content">
          <div class="modal-header">
            <h5 class="modal-title">添加学员</h5>
            <button
              type="button"
              class="btn-close"
              data-bs-dismiss="modal"
              aria-label="Close"
            ></button>
          </div>
          <div class="modal-body">
            <form id="form" class="g-3 row" autocomplete="off" novalidate>
              <div class="col-sm-6">
                <div class="form-group">
                  <label class="input-group-label">姓名：</label>
                  <input
                    type="text"
                    name="name"
                    class="form-control"
                    placeholder="请输入姓名"
                  />
                </div>
              </div>
              <div class="col-sm-6">
                <div class="form-group">
                  <label class="input-group-label">性别：</label>
                  <div class="input">
                    <div class="form-check d-inline-block">
                      <input
                        value="0"
                        checked
                        id="cb01"
                        class="form-check-input"
                        type="radio"
                        name="gender"
                      />
                      <label for="cb01" class="form-check-label">男</label>
                    </div>
                    <div class="form-check d-inline-block">
                      <input
                        value="1"
                        id="cb02"
                        class="form-check-input"
                        type="radio"
                        name="gender"
                      />
                      <label for="cb02" class="form-check-label">女</label>
                    </div>
                  </div>
                </div>
              </div>
              <div class="col-sm-6">
                <div class="form-group">
                  <label class="input-group-label">年龄：</label>
                  <input
                    type="text"
                    name="age"
                    class="form-control"
                    placeholder="请输入年龄"
                  />
                </div>
              </div>
              <div class="col-sm-6">
                <div class="form-group">
                  <label class="input-group-label">组号：</label>
                  <input
                    type="text"
                    name="group"
                    class="form-control"
                    placeholder="请输入1-8组号"
                  />
                </div>
              </div>
              <div class="col-sm-6">
                <div class="form-group">
                  <label class="input-group-label">期望薪资：</label>
                  <input
                    type="text"
                    name="hope_salary"
                    class="form-control"
                    placeholder="请输入期望薪资"
                  />
                </div>
              </div>
              <div class="col-sm-6">
                <div class="form-group">
                  <label class="input-group-label">就业薪资：</label>
                  <input
                    type="text"
                    name="salary"
                    class="form-control"
                    placeholder="请输入就业薪资"
                  />
                </div>
              </div>
              <div class="col-sm-12">
                <div class="form-group">
                  <label class="input-group-label">籍贯：</label>
                  <div class="input pl-0">
                    <select class="form-select custom-select" name="province">
                      <option value="">--省份--</option>
                    </select>
                    <select class="form-select custom-select" name="city">
                      <option value="">--城市--</option>
                    </select>
                    <select class="form-select custom-select" name="area">
                      <option value="">--地区--</option>
                    </select>
                  </div>
                </div>
              </div>
            </form>
          </div>
          <div class="modal-footer">
            <button
              type="button"
              class="btn btn-secondary"
              data-bs-dismiss="modal"
            >
              取消
            </button>
            <button type="button" class="btn btn-blue" id="submit">确认</button>
          </div>
        </div>
      </div>
    </div>
    <script src="./bootstrap/bootstrap.min.js"></script>
    <script src="./lib/axios.js"></script>
    <script src="./lib/form-serialize.js"></script>
    <script src="./js/common.js"></script>
    <script>
      //获取学生列表
      const getElementList = async () => {
        const res = await axios({
          url: '/students',
        })
        // console.log(res)
        document.querySelector('.list').innerHTML = res.data
          .map((item) => {
            return `
          <tr>
                      <td>${item.name}</td>
                      <td>${item.age}</td>
                      <td>${item.gender === 0 ? '男' : '女'}</td>
                      <td>第${item.group}组</td>
                      <td>${item.hope_salary}</td>
                      <td>${item.salary}</td>
                      <td>${item.province + item.city + item.area}</td>
                      <td>
                        <a href="javascript:;" class="text-success mr-3"><i data-id=${
                          item.id
                        } class="bi bi-pen"></i></a>
                        <a href="javascript:;" class="text-danger"><i data-id=${
                          item.id
                        } class="bi bi-trash"></i></a>
                      </td>
                    </tr>
          
          `
          })
          .join('')
        //获取有多少学员
        document.querySelector('.total').innerHTML = res.data.length
      }
      //1.加载事件
      window.onload = () => {
        getElementList()

        //2.删除功能
        //2.1事件委托
        document.querySelector('.list').addEventListener('click', async (e) => {
          // console.log('我要删除');
          // console.log(e.target);

          // console.log(e.target.classList.contains('bi-trash'));//只有点击这个对应类名才为true否则fase
          if (e.target.classList.contains('bi-trash')) {
            //2.2 删除根据id调接口
            // console.log(e.target)
            const res = await axios({
              method: 'delete',
              url: `/students/${e.target.dataset.id}`,
            })
            console.log(res)
            alert('删除成功')
            getElementList()
          }
        })
        //3 弹框显示 公共
        const modal = new bootstrap.Modal(document.querySelector('#modal'))
        //3. 新增
        // console.log(modal);

        document.querySelector('#openModal').onclick = async function () {
          //3.3 修改添加成员
          document.querySelector('.modal-title').innerHTML = '添加学员'
          //3.4 给到确认按钮身上添加一个自定义属性 add
          document.querySelector('#submit').dataset.id = 'add'
          //13.1 重置表单
          document.querySelector('#form').reset()
          // 13.2 根据重置表单之后的数据 再去调市和区
          await renderCity()
          await renderArea()
          //3.1 显示弹框
          modal.show()
        }

        //4 编辑
        document.querySelector('.list').addEventListener('click', async function (e) {
          if (e.target.classList.contains('bi-pen')) {
            //4.2 console .log('编辑了')
            document.querySelector('.modal-title').innerHTML = '编辑学员'
            //4.3 把点击的自定义属性Id给到确认按钮身上
            // console.log(e.target.dataset.id);

            document.querySelector('#submit').dataset.id = e.target.dataset.id
            //4.1 显示弹框
            //12.1 获取id 根据id调详情接口
            const id=e.target.dataset.id
            // console.log(id);
            const res=await axios({
              method:'get',
              url:`/students/${id}`,
            })
            // console.log(res.data);
            //12.2 把当前学生数据 渲染到表单里面
            // for(let k in res.data){
            //   const ipt=document.querySelector(`[name="${k}"]`)
            //   // console.log(ipt);
            //   // console.log(k);
            //   // console.log(res.data[k]);
            //   if(k !='gender'){
            //     // console.log(ipt);
            //     ipt !==null &&(ipt.value=res.data[k])
            //   }else{
            //     const gender=document.querySelectorAll('[name="gender"]')
            //     //根据索引 勾选对应性别
            //     gender[res.data[k]].checked=true
            //   }
            // }
            //另一种方法12.2
            for (let k in res.data){
              const ipt =document.querySelector(`[name="${k}"]`)
              if(ipt !=null){
                ipt.value=res.data[k]
              }
            }
            //修改性别
            const gender=document.querySelectorAll('[name="gender"]')
            gender[res.data.gender].checked=true
            //12.3省市区
            await renderCity(res.data.city)
            await renderArea(res.data.area)
            modal.show()
          }
        })
        //5.提交事件   -----新增-----
        document.querySelector('#submit').onclick=async(e)=>{
          if(e.target.dataset.id==='add'){
            //11 完成新增
             //11.1 获取表单元素
            const data=serialize(document.querySelector('#form'),{hash:true})
            // console.log(data);
            //11.3 转换数据
            data.age=+data.age
            data.gender=+data.gender
            data.hope_salary=+data.hope_salary
            data.salary=+data.salary
            data.group=+data.group
            //11.2 调新增接口
            const res=await axios({
              url:'/students',
              method:'post',
              data,
            })
            // console.log(res);  接口数据是字符串报错 该变数据类型为数字类型
            //11.4 关闭弹框
            modal.hide()
            alert('新增成功')
            //11.4 重新获取学生列表
            getElementList()
           
            
          }else {
            // console.log('编辑了');
            //12.1 获取表单元素
            const date1=serialize(document.querySelector('#form'),{hash:true})//获取是这个id名才为true
            console.log(date1);
            //12.3 获取id
            const id=document.querySelector('#submit').dataset.id
            //12.4 转换数据
            date1.age=+date1.age
            date1.gender=+date1.gender
            date1.hope_salary=+date1.hope_salary
            date1.salary=+date1.salary
            date1.group=+date1.group
            //12.2 调接口 修改接口
            const res=await axios({
              url:`students/${id}`,
              method:'put',
              data:date1,
            })
            //12.3 关闭弹框
            modal.hide()
            //12.4 重新获取学生列表
            alert('修改成功')
            getElementList()
          }
        }
       
        // 6.获取省数据
        async function renderProvince(province = '') {
          // 7.省   获取接口
          const res=await axios({
            url:'api/province'
          })
          // console.log(res);  接口数据
          //7.1渲染页面  通过属性选择器选择这个整体，用map遍历每一个接口数据给左边获取的属性添加数据，选择城市和显示城市改为同样变量
          document.querySelector('[name="province"]').innerHTML=res.data.map((item)=>{
            return `<option value="${item}">${item}</option>`
          })
          //如果传入值 为省 没有为默认的
          if(province!=''){
            document.querySelector('[name="province"]').value=province
          }
        }
        // 获取市数据
        async function renderCity(city = '') {
          const pname=document.querySelector('[name="province"]').value
          // 市
          const res=await axios({
            url:'api/city',
            // method:'get',
            params:{
              pname,
            },
          })
          // console.log(res);  接口数据
          //7.1渲染页面  通过属性选择器选择这个整体，用map遍历每一个接口数据给左边获取的属性添加数据，选择城市和显示城市改为同样变量
          document.querySelector('[name="city"]').innerHTML=res.data.map((item)=>{
            return `<option value="${item}">${item}</option>`
          })
          //如果传入值 为市 没有为默认的
          if(city!=''){
            document.querySelector('[name="city"]').value=city
          }
          
        }
        // 获取区数据
        async function renderArea(area = '') {
          // 区
          const pname=document.querySelector('[name="province"]').value
          const cname=document.querySelector('[name="city"]').value
          // 区
          const res=await axios({
            url:'api/area',
            params:{
              pname,
              cname,
            }
          })
          // console.log(res);  接口数据
          //7.1渲染页面  通过属性选择器选择这个整体，用map遍历每一个接口数据给左边获取的属性添加数据，选择城市和显示城市改为同样变量
          document.querySelector('[name="area"]').innerHTML=res.data.map((item)=>{
            return `<option value="${item}">${item}</option>`
          })
          //一旦设置value 选中对应的option
          //如果用户传入值 为区 没有为默认的
          if(area!=''){
            document.querySelector('[name="area"]').value=area//右边为用户输入传入的值
          }
        }
        // 省市区  这里的await就是要等await后面这个调用函数执行完成再继续下一个await
        async function renderSelect() {
          await renderProvince()
          await renderCity()
          await renderArea()
        }
        renderSelect()

        //10.省市区联动
        //10.1 只要改变省，重新获取市区
        document.querySelector('[name="province"]').onchange =async function(){
          //重新获取市区
          await renderCity()
          await renderArea()
        }
         //10.2 只要改变市，重新获取区
        document.querySelector('[name="city"]').onchange=async function(){
          //重新获取区

          await renderArea()
        }
      }
    </script>
  </body>
</html>
